Stator power heating power supply fixture automatic dismounting device and fixture circulation system

Abstract

The application discloses a kind of stator energized heating power taking jig automatic dismounting equipment and jig circulation system, wherein, automatic dismounting equipment includes rack and the stator tray conveying line, automatic screwing module, automatic dismounting power taking jig module, stator tray jacking module, power taking jig lifting platform, transfer reflow line lifting module being set on rack;Automatic screwing module and automatic dismounting power taking jig module are located above stator tray conveying line;Stator tray jacking module is located below stator tray conveying line, it is used to stator tray upward jacking and disengaging from stator tray conveying line and achieves positioning;Power taking jig lifting platform is located below stator tray conveying line, it is used to accept the power taking jig that automatic dismounting power taking jig module is dismounted from stator;Transfer reflow line lifting module is docked with power taking jig lifting platform.It realizes automatic dismounting power taking jig and jig automatic reflow.

Description

Technical Field

[0001] This invention relates to the field of motor manufacturing technology, specifically to tooling equipment in the stator coating process, and particularly to an automatic disassembly device for a stator energized heating and power-taking fixture, a method for automatically disassembling the stator energized heating and power-taking fixture, and a power-taking fixture circulation system in a stator coating production line. Background Technology

[0002] Stator varnish application is a crucial step in motor manufacturing. It involves applying and curing insulating varnish to the stator windings to improve their insulation performance and mechanical strength. During the varnish application process, to enhance the wetting and curing effect of the varnish, the three-phase stator windings are energized and heated, causing the stator itself to heat up. For this purpose, a current-collecting fixture needs to be installed on the three-phase terminals of the stator to supply current to the stator windings. This fixture is a ring-shaped body with two arc-shaped pieces hinged at one end and locked at the other, used to clamp the stator around its outer circumference. Furthermore, the three connecting ends of the fixture are screwed into the corresponding three-phase terminals of the stator.

[0003] Currently, the power-taking fixture in the traditional stator coating production line is used as follows: First, the power-taking fixture is manually installed on the three-phase terminals of the stator; then, the stator product carrying the power-taking fixture passes through the preheating station, coating station, curing station, and cooling station in sequence; after cooling is completed, the power-taking fixture is manually removed from the stator; the removed power-taking fixture is placed on a trolley and manually pushed back to the power-taking fixture installation station at the front of the production line for use in the next batch of stators.

[0004] The aforementioned traditional solutions have several drawbacks: The power-taking fixture undergoes the entire process of coating, curing, and cooling along with the stator product from installation to disassembly, resulting in a prolonged residence time on the production line. Due to continuous production line operation, a large number of power-taking fixtures must be configured to meet continuous production demands, leading to high tooling costs. The installation and removal of the power-taking fixtures are all done manually. Especially during disassembly, the stator product has just undergone curing and cooling, making the work physically demanding for operators. Furthermore, manual disassembly is inefficient and prone to deformation or damage to the stator terminals or the power-taking fixture due to improper operation. After installation, the power take-up fixture enters the preheating station along with the stator product. In this high-temperature environment, the fixture undergoes thermal cycling, causing dimensional changes in its metal components due to thermal expansion. This alters the fit between the fixture and the stator terminals. Thermal expansion may lead to an interference fit, increasing the difficulty of subsequent disassembly, or uneven expansion may increase contact resistance, affecting the heating effect during the coating process. Furthermore, repeated high-temperature cycling accelerates the aging of the surface plating and insulation components, shortening its lifespan. Additionally, the reduced efficiency of using the preheating heat to raise the stator's temperature after absorption by the fixture also results in energy waste.

[0005] In addition, the disassembled power supply fixtures rely on manual pushing back to the front end, resulting in low logistics turnover efficiency. Furthermore, the trolleys frequently travel through the production line aisles, posing safety risks such as collisions with equipment and disruption of the smooth flow of logistics on the production line.

[0006] To address these issues, industry technicians have attempted to introduce automated disassembly equipment into the paint dispensing production line, such as using robotic arms to grasp and transport the power-taking fixture. However, during the paint dispensing and heating process, the connection between the power-taking fixture and the stator terminals may become tightly fitted due to thermal expansion, and the locking structure may undergo slight deformation at high temperatures. Conventional robotic arm gripping methods are insufficient to reliably and stably separate the power-taking fixture from the stator, and forced disassembly can easily damage the stator terminals or the fixture itself.

[0007] Therefore, how to achieve automatic, efficient, and non-destructive disassembly of power-generating fixtures in the paint dripping production line, and how to build a recycling system for power-generating fixtures, has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0008] In view of this, the present invention addresses the deficiencies of the prior art and its main objective is to provide an automatic disassembly device for stator energized heating power-taking fixture, a method for automatically disassembling the stator energized heating power-taking fixture, and a power-taking fixture circulation system in a stator coating production line, which realizes automatic disassembly of the power-taking fixture and automatic fixture return.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: An automatic disassembly device for a stator energized heating and power-taking fixture includes a frame and a stator tray conveyor line, an automatic screw tightening module, an automatic power-taking fixture disassembly module, a stator tray lifting module, a power-taking fixture lifting platform, and a transfer return line lifting module mounted on the frame. The stator tray conveyor line has conveyor support sections spaced at both ends, with clearance space reserved between adjacent conveyor support sections. The automatic screw tightening module and the automatic electrical fixture removal module are located above the stator tray conveyor line. The stator tray lifting module is located below the stator tray conveyor line and is positioned corresponding to the clearance space. It is used to lift the stator tray upwards, detach it from the stator tray conveyor line, and achieve positioning. The electrical fixture lifting platform is located below the stator tray conveyor line and is positioned corresponding to the clearance space. It is used to receive the electrical fixture removed from the stator by the automatic electrical fixture removal module. The transfer return line lifting module is connected to the electrical fixture lifting platform.

[0010] As a preferred embodiment, the stator tray lifting module includes a lifting base plate, a first lifting drive mechanism, a rotary cylinder, and a positioning pin; the lifting base plate is horizontally positioned directly below the clearance space, and the first lifting drive mechanism drives the lifting base plate to rise and fall; the rotary cylinder drives the lifting base plate to rotate horizontally; the positioning pin is vertically positioned on the upper surface of the lifting base plate and is used to engage with the positioning hole at the bottom of the stator tray.

[0011] As a preferred embodiment, the automatic screw tightening module and the automatic disassembly and removal of electrical jig module are driven by the same XY two-axis drive module to move on the XY two-dimensional plane.

[0012] As a preferred embodiment, the automatic screw-tightening module includes a first Z-axis drive mechanism, a bit assembly, and a Y-axis cylinder that drives the bit assembly to move along the Y-axis. The first Z-axis drive mechanism drives the Y-axis cylinder and the bit assembly to move up and down together along the Z-axis. A screw recycling point is provided on the frame, and the bit assembly is driven by the Y-axis cylinder to move horizontally to drop the screw into the screw recycling point.

[0013] As a preferred embodiment, the automatic disassembly and retrieval electrical fixture module includes a second Z-axis drive mechanism, a mounting base that is driven by the second Z-axis drive mechanism to move up and down along the Z-axis, and grippers, gripper cylinders, latch actuating parts, latch opening cylinders, product contact parts, and product-fixture separation cylinders disposed on the mounting base. The output end of the gripper cylinder is connected to the gripper and is used to drive the gripper to open and close; the inner side of the gripper is provided with a contoured gripping part, which has a radial gripping surface and an axial support surface. The radial gripping surface is used to clamp the outer peripheral wall of the power-collecting fixture when the gripper is closed, and the axial support surface is used to support the bottom end face of the outer ring of the power-collecting fixture from the bottom. The latch opening cylinder drives the latch actuating part to move outward to pry open the latch of the power-taking fixture; The product-fixture separation cylinder is mounted on the gripper so that it moves with the gripper. The product-fixture separation cylinder drives the product contact portion to move downward relative to the gripper so as to press downward against the stator.

[0014] As a preferred embodiment, the power-collecting fixture lifting platform includes a lifting platform and a second lifting drive mechanism; the lifting platform is horizontally positioned directly below the clearance space, and the second lifting drive mechanism is connected to the lifting platform; The lifting tray has a raised high position and a lowered low position. In the raised high position, the upper surface of the lifting tray receives the power supply fixture placed on it. In the lowered low position, the upper surface of the lifting tray is flush with or lower than the bearing surface of the transfer return line lifting module.

[0015] As a preferred embodiment, the transfer return line lifting module includes a transfer return line body and a third lifting drive mechanism; the transfer return line body is located on the left or right side of the power supply fixture lifting platform, and the transfer return line body has a horizontal conveying surface; the third lifting drive mechanism is connected to the transfer return line body and is used to drive the transfer return line body to switch between being higher than the return conveyor line, level with it, or lower than the return conveyor line.

[0016] A method for automatically disassembling a stator energized heating and power-taking fixture, wherein the method is implemented using an automatic disassembly device for a stator energized heating and power-taking fixture as described in any of the preceding claims; the method includes the following steps: Step S1: The pallet loaded with the stator is transported along the stator pallet conveyor line to the top of the stator pallet lifting module, where the stator pallet lifting module lifts the stator pallet upwards, removes it from the stator pallet conveyor line, and positions it. Step S2: The automatic screw tightening module moves above the stator tray and removes the screws on the power supply fixture used to tighten the three-phase terminals of the stator. Step S3: The automatic power disassembly fixture module removes the power disassembly fixture from the stator and places it on the power disassembly fixture lifting platform. At this time, the power disassembly fixture lifting platform is in the raised high position. Step S4: The power-taking fixture lifting platform is lowered to the lowered position, and the power-taking fixture is placed on the transfer return line lifting module.

[0017] A power-collecting fixture circulation system in a stator coating production line includes a preheating station, a manual power-collecting fixture loading station, a coating dispensing station, an automatic power-collecting fixture unloading station, and a curing station arranged sequentially along the conveying direction of the stator tray conveyor line. The automatic disassembly and removal station is equipped with an automatic disassembly device for stator heating and removal of electrical fixtures as described in any of the preceding items. The automatic disassembly device is located between the paint dripping station and the curing station and is used to automatically remove the electrical fixture from the stator product after the paint dripping process is completed and before the curing process is started. A return conveyor line connects the automatic disassembly and removal station for electrical fixtures to the manual loading and unloading station for electrical fixtures. The starting end of the return conveyor line is connected to the transfer return line lifting module of the automatic disassembly equipment, and the ending end of the return conveyor line extends to the side of the manual loading and unloading station for electrical fixtures. The return conveyor line is used to transport the disassembled electrical fixtures from the automatic disassembly equipment back to the manual loading and unloading station for electrical fixtures for repeated use.

[0018] As a preferred embodiment, the manual power-taking fixture station is also equipped with a high-temperature protective cover. The high-temperature protective cover is positioned above the conveying path of the production line and has a top window for exposing the top of the stator product to facilitate the installation of the power-taking fixture.

[0019] Compared with existing technologies, this invention has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly arranges the stator pallet lifting module and the power-receiving fixture lifting platform simultaneously below the stator pallet conveyor line, sharing the same clearance space. Meanwhile, an automatic screw-tightening module and an automatic power-receiving fixture removal module are arranged above the conveyor line, forming a three-layer vertical functional integrated architecture where disassembly operations are performed above, products are conveyed in the middle, and lifting, positioning, and fixture retrieval are completed below. The clearance space serves multiple functional modules simultaneously, providing a lifting channel for the stator pallet lifting module, allowing the pallet to detach from the conveyor line for stable positioning, and a descending channel for the power-receiving fixture lifting platform, allowing the disassembled high-temperature fixture to descend from the conveyor line height to the lower return height. This allows the equipment to integrate multiple functions such as lifting and positioning, screw disassembly, fixture clamping and separation, and fixture descent and reception within a very small space, saving production line floor space and making the equipment structure highly compact.

[0020] Because the stator product is heated by electricity through a power-taking fixture during the paint dripping process, both the stator product and the power-taking fixture retain significant residual heat during disassembly. This invention completely replaces manual disassembly operations with an automatic screw-tightening module and an automatic power-taking fixture removal module. This eliminates the need for operators to perform contact operations in high-temperature environments, thus eliminating the burn hazards associated with traditional manual disassembly methods. Furthermore, automated disassembly features high consistency and repeatability, avoiding quality issues such as stator terminal misalignment and power-taking fixture damage caused by individual differences or fatigue during manual operation.

[0021] Meanwhile, the installation of a power-feeding fixture lifting platform and a transfer return line lifting module enables the automatic disassembly equipment to smoothly transition the fixture from the main conveyor layer of the production line to the lower return channel while physically separating the fixture from the product. The integrated design of disassembly, receiving, lowering, and handover provides an indispensable hardware interface for the subsequent automated recycling of fixtures. This transforms the traditional method of manually collecting fixtures after they complete the entire product cycle into an immediate automatic return system after disassembly, creating conditions for a significant reduction in the total number of fixtures required.

[0022] Furthermore, this invention places the installation process of the power-taking fixture after the preheating station and before the paint-spraying station, eliminating the need for the fixture to endure the high-temperature environment of the preheating station. This avoids the thermal expansion and contraction effect during preheating, ensuring the assembly accuracy between the fixture and the stator terminals is unaffected by thermal cycling, thus facilitating stable and controllable contact resistance and guaranteeing consistent heating effects during paint spraying. The surface plating and insulating components of the fixture do not undergo high preheating temperatures, extending their service life. All heat generated at the preheating station is used to raise the temperature of the stator itself, preventing energy loss due to fixture heating and improving preheating efficiency. The fixture is installed manually at room temperature, and combined with the isolation provided by the high-temperature protective cover, the safety and comfort of manual operation are guaranteed. In traditional technology, the power-taking fixture is always installed before preheating and enters the preheating furnace along with the stator. Existing technologies typically preheat the fixture synchronously with the stator, but this method suffers from problems such as fixture thermal expansion and energy waste. The inventors have discovered that by moving the process of loading and unloading electrical fixtures to after the preheating process, and by combining this invention with its specific structure and reflux circulation system, the above-mentioned problems can be solved and contact resistance can be kept stable.

[0023] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is a structural diagram (top view) of a representative power-generating fixture according to an embodiment of the present invention. Figure 2 This is a perspective view of an automatic disassembly device for a stator energized heating and power-generating fixture according to an embodiment of the present invention; Figure 3 This is a diagram illustrating the internal structure of an automatic disassembly device according to an embodiment of the present invention; Figure 4 This is a perspective view of the stator tray lifting module of the automatic disassembly device according to an embodiment of the present invention; Figure 5 This is a perspective view of the power supply jig lifting platform of the automatic disassembly device according to an embodiment of the present invention; Figure 6 This is a perspective view of the XY two-axis drive module, the automatic screw tightening module, and the automatic disassembly and removal electric jig module of the automatic disassembly device according to an embodiment of the present invention; Figure 7 This is a perspective view of the automatic disassembly and reassembly electrical fixture module of the automatic disassembly device according to an embodiment of the present invention; Figure 8 This is another perspective view of the automatic disassembly and reassembly electrical fixture module of the automatic disassembly device according to an embodiment of the present invention; Figure 9This is a diagram showing the usage status of the automatic disassembly and retraction of the electrical jig module of the automatic disassembly device according to an embodiment of the present invention (showing the electrical jig). Figure 10 This is a structural diagram of the power supply fixture circulation system in the stator coating production line according to an embodiment of the present invention (front view, showing part of the process of the entire production line); Figure 11 This is a structural diagram of the power supply fixture circulation system in the stator coating production line according to an embodiment of the present invention (top view, showing some processes of the entire production line). Figure 12 This is a structural diagram of the manual power-taking fixture station in the power-taking fixture circulation system of the stator dripping paint production line according to an embodiment of the present invention; Figure 13 This is a perspective view of the lifting and positioning mechanism of the manual loading and unloading electrical jig station according to an embodiment of the present invention.

[0025] Reference numerals: 1. Frame; 2. Stator tray conveyor line; 21. Clearance space; 3. Automatic screw tightening module; 31. First Z-axis drive mechanism; 4. Automatic electrical fixture removal module; 41. Second Z-axis drive mechanism; 42. Mounting base; 43. Gripper; 44. Product contact part; 45. Product and fixture separation cylinder; 46. Spring contact post; 47. Locking lever; 48. Locking unlock cylinder; 5. Stator tray lifting module; 51. Lifting base plate; 52. First lifting drive mechanism; 53. Rotary cylinder; 54. Positioning pin; 6. Electrical fixture lifting platform; 61. Lifting pallet; 62. Second lifting drive mechanism. 7. Transfer and return line lifting module; 71. Transfer and return line body; 72. Third lifting drive mechanism; 8. Control system; 9. XY two-axis drive module; 10. Vision positioning component; 11. Mounting plate; W1. Preheating station; W2. Manual power jig loading and unloading station; W21. High temperature protective cover; W22. Top window; W23. Lifting and positioning mechanism; W3. Paint dripping station; W4. Automatic power jig unloading station; W5. Curing station; W6. Cooling station; W7. Return conveyor line; W8. Jig table; ZJ01. Power jig outer ring; ZJ02. Lock; ZJ03. Lock inner gap; ZJ04. Power connection end. Detailed Implementation

[0026] Please refer to Figures 1 to 13 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0027] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0028] An automatic disassembly device for stator energized heating and power-taking fixtures is used for the automatic disassembly of power-taking fixtures in a stator coating production line. It includes a frame 1 and a stator tray conveyor line 2, an automatic screw-tightening module 3, an automatic power-taking fixture disassembly and reassembly module 4, a stator tray lifting module 5, a power-taking fixture lifting platform 6, a transfer return line lifting module 7, and a control system 8, all mounted on the frame 1. The control system 8 is connected to the stator tray conveyor line 2, the automatic screw-tightening module 3, the automatic power-taking fixture disassembly and reassembly module 4, the stator tray lifting module 5, the power-taking fixture lifting platform 6, and the transfer return line lifting module 7.

[0029] The stator pallet conveyor line 2 has conveyor support sections spaced at both ends, with a clearance space 21 reserved between adjacent conveyor support sections. Specifically, two parallel conveyor belts or two conveyor chains serve as conveyor support sections, and the vertical projection of the clearance space 21 covers the bottom area of ​​the stator pallet. The automatic screw tightening module 3 and the automatic electrical fixture removal module 4 are located above the stator pallet conveyor line 2; the stator pallet lifting module 5 is located below the stator pallet conveyor line 2 and is positioned corresponding to the clearance space 21, and is used to lift the stator pallet upwards, detach it from the stator pallet conveyor line 2, and achieve positioning; the electrical fixture removal lifting platform 6 is located below the stator pallet conveyor line 2 and is positioned corresponding to the clearance space 21, and is used to receive the electrical fixture removed from the stator by the automatic electrical fixture removal module 4; the transfer return line lifting module 7 is connected to the electrical fixture removal lifting platform 6 and is used to transfer the electrical fixture to the return conveyor line.

[0030] The stator tray lifting module 5 includes a lifting base plate 51, a first lifting drive mechanism 52, a rotary cylinder 53, and a positioning pin 54. The positioning pin 54 is vertically set on the upper surface of the lifting base plate 51 and is used to engage with the positioning hole at the bottom of the stator tray. After the stator tray is lifted, it achieves bidirectional mechanical limiting in the X and Y directions, providing a high-precision positioning reference for the subsequent automatic screw tightening module 3 to accurately align the screw hole position and for the automatic disassembly and reassembly module 4 to accurately clamp the outer ring ZJ01 of the power disassembly fixture. The lifting base plate 51 is horizontally positioned directly below the clearance space 21. The cylinder of the first lifting drive mechanism 52 is fixed to the frame 1, and the piston rod of the first lifting drive mechanism 52 extends vertically upward and connects to the lifting base plate 51 to drive the lifting base plate 51 to rise and fall. Specifically, the piston rod of the first lifting drive mechanism 52 is connected to the cylinder of the rotary cylinder 53, which drives the lifting base plate 51 to rotate horizontally by 90 degrees, allowing the stator product to complete the attitude switching at the same lifting station. Since the screws and latches ZJ02 of the power supply fixture are usually distributed in different circumferential positions of the fixture, if multiple disassembly stations are set up or multiple robotic arms are configured to reach in from different directions, the equipment cost will be high and the cumulative error will result from multiple positioning. By rotating the stator tray itself, the same set of automatic screw tightening module 3 and automatic power jig removal module 4 can sequentially align and operate the screws and latches on different sides of the power jig, realizing the integrated function of one-time lifting and positioning and multi-face sequential operation. This not only saves equipment manufacturing costs, but also avoids the accuracy loss caused by multiple positioning.

[0031] The automatic screw tightening module 3 and the automatic electrical fixture removal module 4 are driven by the same XY two-axis drive module 9 to move in the XY two-dimensional plane. The automatic screw tightening module 3 and the automatic electrical fixture removal module 4 are mounted on the same mounting plate 11, which is driven by the XY two-axis drive module 9 (including an X-axis drive module and a Y-axis drive module; the X-axis drive module drives the mounting plate 11 to move along the X-axis, and the Y-axis drive module drives the X-axis drive module together with the mounting plate 11 to move along the Y-axis) to move in the XY two-dimensional plane. The mounting plate 11 is also equipped with a vision positioning component 10, which is located above the stator tray conveyor line 2. The vision positioning component 10 includes a CCD industrial camera and a light source. The acquisition end of the CCD industrial camera is set vertically downward to acquire the position image of the electrical fixture (including screw position, buckle position, etc.). The relative positional relationship between the automatic screw-tightening module 3 and the automatic electrical fixture removal module 4 is fixed after the equipment is manufactured and assembled, and remains unchanged throughout its entire life cycle. The position coordinates of the screw holes or latches on the electrical fixture collected by the vision positioning component 10 can be directly converted into the target movement position of the automatic screw-tightening module 3 or the automatic electrical fixture removal module 4, without the need for complex coordinate system calibration and transformation calculations, simplifying the algorithm complexity of the control system and improving the positioning response speed and execution accuracy. In mass production, slight positional deviations are inevitable when the stator tray travels along the stator tray conveyor line (such as conveyor belt slippage, lateral stopping errors, etc.). The open-loop control system cannot cope with these deviations, which can easily lead to the screw bit not being aligned with the screw hole, resulting in slippage or damage to the screw head. It is through the online position detection and coordinate compensation performed by the vision positioning component 10 before each operation that the equipment has the ability to self-correct deviations, and the automatic screw-tightening and electrical fixture removal actions are accurate and reliable.

[0032] Specifically, the automatic screw-tightening module 3 includes a first Z-axis drive mechanism 31, a bit assembly, and a Y-axis cylinder that drives the bit assembly to move along the Y-axis. The first Z-axis drive mechanism 31 drives the Y-axis cylinder and the bit assembly to move up and down together along the Z-axis. A screw recycling area is provided on the frame 1. The Y-axis cylinder drives the bit assembly to reset and translate so that the screw is dropped into the screw recycling area (e.g., a recycling trough). After the bit assembly has removed a screw, it is driven by the Y-axis cylinder to translate and retract along the Y-direction to reset above the recycling trough, so that the removed screw that is attracted or stuck to the end of the bit is released from the bit and falls into the screw recycling trough by gravity.

[0033] Specifically, the automatic disassembly and detachment electrical fixture module 4 includes a second Z-axis drive mechanism 41, a mounting base 42 driven by the second Z-axis drive mechanism 41 to move up and down along the Z-axis, and a gripper 43, a gripper cylinder, a product contact part 44, a product and fixture separation cylinder 45, a latch actuation part 47, and a latch opening cylinder 48 disposed on the mounting base 42.

[0034] The output end of the gripper cylinder is connected to the gripper 43, which is used to drive the gripper 43 to open and close left and right. A contoured gripping part is provided on the inner side of the gripper 43. The contoured gripping part has a radial gripping surface and an axial support surface. The contoured gripping part adopts a dual locking effect of radial clamping and axial support: the radial gripping surface is used to clamp the outer peripheral wall of the power-collecting fixture ZJ01 when the gripper 43 is closed, providing horizontal locking force to prevent the power-collecting fixture from moving horizontally; the axial support surface is used to support the outer ring ZJ01 of the power-collecting fixture from the bottom when the gripper 43 is closed. The bottom surface of J01 provides rigid support in the vertical direction. The dual locking structure of clamping and bottom support is the key to solving the problem of reliable disassembly of high-temperature jigs in this invention. Because the stator product is coated and heated by electricity, the power-taking jig and the stator fit more tightly due to thermal expansion. In the subsequent Z-axis separation step, a large axial separation force needs to be overcome. If the static friction generated by the radial clamping force of conventional grippers is used to overcome the separation force, the jig is prone to slippage and falling under the dual unfavorable conditions of high temperature and surface lubrication. This invention provides rigid lifting force through the axial support surface, so that the jig obtains physical support from the bottom during the separation process. Regardless of whether the radial clamping force is sufficient to provide enough static friction, the jig cannot slip off from the gripper 43, achieving disassembly reliability with zero risk of falling. This is a technical effect that conventional robotic grippers cannot achieve at all.

[0035] The piston rod of the latch-opening cylinder 48 extends horizontally, driving the latch-moving part 47 to move radially outward to pry open the latch ZJ02 of the power-taking fixture. Because the latch-opening cylinder 48 drives the latch-moving part 47 to move radially outward, the latch ZJ02 is pried open after the gripper 43 has clamped the power-taking fixture and before the Z-axis separation action. This sequential design, which first clamps and fixes the power-taking fixture, then releases the latch ZJ02, and finally separates the power-taking fixture from the stator product, ensures that the power-taking fixture is firmly held by the gripper 43 the instant the latch ZJ02 is opened. This prevents the power-taking fixture from shifting or shaking due to the impact force generated by the sudden opening of the latch ZJ02, thus ensuring the smoothness and consistency of the subsequent separation action.

[0036] The product-fixture separation cylinder 45 is mounted on the mounting bracket of the gripper 43, moving in tandem with the gripper 43. The piston rod of the product-fixture separation cylinder 45 extends vertically upward and connects to the product abutment part 44, driving the product abutment part 44 to move downward relative to the gripper 43 and press down on the stator. On one hand, while the second Z-axis drive mechanism 41 drives the gripper 43 and the clamped power-taking fixture to lift upward, the product abutment part 44 presses down on the stator product, forming a separation couple between the power-taking fixture and the stator product, which effectively overcomes the tight fit resistance caused by thermal expansion, making the separation action smoother. On the other hand, the product abutment part 44 directly presses against the body of the stator product (such as the stator core end face) rather than the stator three-phase terminals, so that the mechanical force generated during the separation process does not act on the vulnerable terminal parts, avoiding the stator terminals from being skewed, deformed, or damaged by the enameled wire during disassembly.

[0037] The power-collecting fixture lifting platform 6 includes a lifting tray 61 and a second lifting drive cylinder 62. The lifting tray 61 is horizontally positioned directly below the clearance space 21. The cylinder body of the second lifting drive cylinder 62 is fixed to the frame 1, and the piston rod of the second lifting drive cylinder 62 extends vertically upward and is connected to the lifting tray 61. The lifting tray 61 has a raised high position and a lowered low position. When raised high, the upper surface of the lifting tray 61 (preferably) is higher than the conveying surface of the stator tray conveyor line 2 to receive the power-collecting fixture placed on it. When raised high, the upper surface of the lifting tray 61 is higher than or flush with the surface of the stator tray conveyor line 2. The distance between the upper surface of the lifting pallet 61 and the disassembled power-taking fixture, which is at or slightly below the conveying surface of the stator pallet conveyor line 2, cannot be too large since the power-taking fixture is disassembled upwards. This distance is allowed within the lifting stroke of the second Z-axis drive mechanism 41 of the automatic power-taking fixture module 4. Preferably, the distance is above the conveying surface of the stator pallet conveyor line 2. This is to ensure that, within a sufficiently narrow clearance space 21, when the automatic power-taking fixture module 4 releases the power-taking fixture onto the lifting pallet 61, the power-taking fixture can land smoothly on the upper surface of the lifting pallet 61 without mechanical interference or collision with the conveying support. At the same time, when the lifting pallet 61 is in a high position, it is close to the release position of the gripper 43, which shortens the Z-axis descent stroke of the gripper 43 and helps to shorten the cycle time of a single disassembly. When the lifting pallet 61 is lowered, its upper surface is flush with or lower than the bearing surface of the intermediate return line lifting module 7. In this way, the lifting pallet 61 completes the receiving at the high position and the handover at the low position. The lifting switch is achieved by the second lifting drive cylinder 62 in the middle. When receiving, it is in a high position to ensure that it does not interfere with the conveyor line and shortens the stroke of the gripper 43. When handing over, it is in a low position to ensure that it does not interfere with the stator pallet conveyor line 2 and achieves a shock-free transition.

[0038] The transfer return line lifting module 7 is located below the stator pallet conveyor line 2 and is set in the corresponding clearance space 21. It can be seen that the stator pallet lifting module 5, the power supply fixture lifting platform 6, and the transfer return line lifting module 7 make full use of the original clearance space 21 below the stator pallet conveyor line 2, without occupying additional production line area in the horizontal direction, thus avoiding the increase in equipment footprint caused by adding fixture recycling function. The transfer return line lifting module 7 includes a transfer return line body 71 and a third lifting drive mechanism 72. The transfer return line body 71 is located on the left or right side of the power take-up fixture lifting platform 6. The transfer return line body 71 has a horizontal conveying surface, which includes two sets of synchronous conveyor belts arranged in parallel with a front-to-back spacing. The gap in the middle is for the power take-up fixture lifting platform 6 to accommodate it. When the second lifting drive cylinder 62 controls the lifting plate 61 to descend to the lowered position, the upper surface of the lifting plate 61 is flush with or lower than the top horizontal conveying surface of the synchronous conveyor belt of the transfer return line body 71. The bottom front and rear sections of the power take-up fixture fall on the two sets of synchronous conveyor belts, realizing the smooth transfer of the power take-up fixture on the power take-up fixture lifting platform 6 to the transfer return line lifting module 7. The third lifting drive mechanism 72 is connected to the transfer return line body 71 and is used to drive the transfer return line body 71 to switch between being higher than the return conveyor line and being flush with or slightly lower than the return conveyor line. The transfer return line 71 receives the power take-up fixture from the lifting platform when it is at a high position, and transfers it to the return conveyor line when it is at a low position. This achieves a flexible transition of the power take-up fixture from the lifting platform to the return conveyor line, avoiding problems such as tipping, jamming, or deviation of the power take-up fixture caused by speed mismatch or height installation deviation between the lifting platform and the return conveyor line. This makes the return process of the power take-up fixture smoother and more reliable. Since the power take-up fixture still has a high residual heat when it is removed from the stator product, a four-step handover chain is adopted: the lifting pallet 61 descends for handover → the transfer return line 71 receives it at a high position → the transfer return line 71 descends to a low position → the power take-up fixture is transferred to the return conveyor line. This ensures that the power take-up fixture does not experience a free fall during the layer-by-layer handover process, achieving a transfer effect with zero impact and zero damage. Moreover, the lifting platform can rise back to its original position for the next reception without waiting for the return conveyor line to completely transport the power collection fixture away. The recovery processes of the two power collection fixtures can partially overlap in time, effectively improving the equipment's processing capacity per unit time.

[0039] It should be noted that the control system 8 (or controller) of the automatic disassembly equipment for the stator energized heating and power-generating fixture is connected to the XY two-axis drive module, the first Z-axis drive mechanism, the second Z-axis drive mechanism, the first lifting drive mechanism, the second lifting drive cylinder, the third lifting drive mechanism, the gripper cylinder, the latch opening cylinder, the product and fixture separation cylinder, and the vision positioning component. The control system 8 controls each drive mechanism and cylinder to work together in a preset sequence according to the position signal fed back by the vision positioning component in order to execute the automatic disassembly steps.

[0040] A method for automatically disassembling a stator energized heating and power-taking fixture is provided, the method being implemented using any of the aforementioned automatic disassembly devices for stator energized heating and power-taking fixtures; the method includes the following steps: Step S1: The pallet loaded with the stator is transported along the stator pallet conveyor line 2 to the top of the stator pallet lifting module 5, where the stator pallet lifting module 5 lifts the stator pallet upwards, removes it from the stator pallet conveyor line 2, and positions it. Step S2: The automatic screw tightening module 3 is moved above the stator tray and the screws used to lock the three-phase terminals of the stator are removed from the power supply fixture; Step S3: The automatic disassembly and removal module 4 removes the power-receiving fixture from the stator and places it on the power-receiving fixture lifting platform 6. At this time, the power-receiving fixture lifting platform 6 is in the raised high position. Step S4: The power supply fixture lifting platform 6 is lowered to the lowered position, and the power supply fixture is handed over / placed on the transfer return line lifting module 7.

[0041] A power-taking fixture circulation system is provided in a stator coating production line, including multiple stations arranged sequentially along the production line conveying direction, such as a preheating station W1, a manual power-taking fixture loading station W2, a coating loading station W3, an automatic power-taking fixture disassembly station W4, a curing station W5, and a cooling station W6. The automatic disassembly and removal station W4 is equipped with an automatic disassembly device for the stator heating and removal fixture, as described in any of the previous items. The automatic disassembly device is located between the paint dripping station W3 and the curing station W5. It is used to automatically remove the removal fixture from the stator product after the paint dripping process is completed and before the curing process begins. A return conveyor line W7 connects the automatic disassembly and reassembly station for electrical jigs and the manual loading and unloading station for electrical jigs. The starting end of the return conveyor line W7 is connected to the transfer return line lifting module 7 of the automatic disassembly equipment, and the ending end of the return conveyor line W7 extends to the side of the manual loading and unloading station for electrical jigs. The return conveyor line W7 is used to transport the disassembled electrical jigs from the automatic disassembly equipment back to the manual loading and unloading station for electrical jigs for recycling.

[0042] A high-temperature protective cover W21 is also installed at the manual loading and unloading fixture station W2. The high-temperature protective cover W21 is installed above the conveying path of the production line. The high-temperature protective cover W21 has a top window W22, which is used for the stator product to pass through during lifting (the conveying path of the production line here adopts the same conveying structure as the aforementioned stator tray conveying line 2. A lifting and positioning mechanism W23 is set in the clearance space corresponding to the manual loading and unloading fixture station W2, which adopts a servo motor and electric cylinder to achieve servo lifting and positioning), so that the top of the stator product is exposed for the installation of the power-receiving fixture; and the working height of the manual loading and unloading fixture station W2 is 1100mm to 1300mm.

[0043] A method for recycling power-taking fixtures in a stator coating production line is provided, employing the aforementioned power-taking fixture recycling system in the stator coating production line, including the following steps: After the stator product is preheated at the preheating station W1, it is conveyed to the manual power-on fixture station W2, where the power-on fixture is installed onto the stator product by a person. Stator products equipped with power-taking fixtures enter the paint-drip station W3 for paint-drip treatment. During the paint-drip process, the three-phase windings of the stator are energized and heated through the power-taking fixture. After the paint dripping process is completed, the stator product is transported to the automatic electrical fixture removal station W4, located between the paint dripping station W3 and the curing station W5. The automatic removal equipment performs the automatic removal step, detaching the electrical fixture from the stator product. The removed electrical fixture is then returned via the return conveyor line W7 to the fixture platform W8 next to the manual electrical fixture installation station W2. (Preferably, the height of the fixture platform W8 is the same as or substantially the same as the working height of the manual electrical fixture installation station W2 for easy manual handling. Therefore, after being returned via the return conveyor line W7, the electrical fixture is then lifted onto the fixture platform W8 by the lifting mechanism. The return conveyor line W7 can employ mature automatic conveying technologies such as conveyor belts or conveyor chains. Similarly, the lifting mechanism is used for…) Lifting the power-taking fixture from the output end of the low-level return conveyor line W7 to the fixture platform W8 is also a mature technology. This typically includes a lifting cage and a lifting plate located within the lifting cage. The lifting plate is controlled by its lifting drive unit. An inlet is located on one side of the lifting cage, allowing the power-taking fixture to be pushed onto the lifting plate inside the cage. When the lifting plate rises to a set height, it is pushed onto the fixture platform W8, and then the lifting plate descends again to receive the power-taking fixture, thus completing the cycle. The units used to push the power-taking fixture onto the lifting plate and to push it out of the lifting plate are two different pushing units. These pushing units can be integrated into the lifting cage or located near the output end of the return conveyor line W7 and the fixture platform W8, corresponding to the inlet and outlet of the lifting cage.

[0044] The stator product, after being removed from the power supply fixture, is conveyed to the curing station W5 for curing, then to the cooling station W6 for cooling, and then to other subsequent processes.

[0045] The automatic disassembly steps specifically include the following steps set sequentially: Lifting and positioning steps: The stator pallet lifting module 5 lifts the stator pallet carrying the stator product upwards, so that it is removed from the stator pallet conveyor line 2 and positioned. Screw removal steps: The automatic screw tightening module 3 moves to the power supply fixture under the drive of the XY two-axis drive module 9 and removes the screws connected to the power supply fixture. Clamping the power-collecting fixture step: The gripper 43 of the automatic disassembly and disassembly fixture module 4 moves and clamps the outer ring ZJ01 of the power-collecting fixture, while clamping the outer ring ZJ01 of the power-collecting fixture from the outside and supporting the bottom surface of the outer ring ZJ01 of the power-collecting fixture from the bottom. Unlocking steps: The automatic disassembly cylinder 48 extends to open the latch of the electric jig module 4 and pushes open the latch ZJ02 on the electric jig. Separation steps of fixture and stator product: The product separation cylinder 45 of the automatic disassembly and removal fixture module 4 is activated, driving the product abutment part 44 to move downward relative to the gripper 43 to press downward against the stator. In conjunction with the second Z-axis drive mechanism 41 of the automatic disassembly and removal fixture module 4 rising along the Z-axis, the power disassembly fixture and the stator product are separated upward along the Z-axis. Subsequently, the entire automatic disassembly and removal fixture module 4 is raised upward so that the product abutment part 44 is detached from the stator product. Fixture recycling steps: The automatic disassembly and reassembly fixture module 4 places the disassembled power-taking fixture on the power-taking fixture lifting platform 6. The power-taking fixture lifting platform 6 descends to the height where it docks with the transfer return line lifting module 7. The transfer return line lifting module 7 transfers the power-taking fixture to the return conveyor line W7 to form a docking.

[0046] Next, the operation process of recycling the power supply fixture of the stator coating production line in this embodiment will be described in detail (a high-temperature protective cover is installed on the production line from the output end of the preheating oven to the input end of the curing oven to prevent heat loss): I. Front-end manual loading and unloading of electrical fixtures stage.

[0047] Step A1: Stator product incoming materials and preheating.

[0048] The stator products are transported from upstream of the production line to preheating station W1, where they enter the preheating furnace for preheating. The preheating furnace heats the entire stator product, bringing the stator windings to a suitable initial temperature for varnish application, thus providing conditions for good wetting and flowability of the varnish during the subsequent varnish application process. At this stage, the power-taking fixtures have not yet been installed on the three-phase terminals of the stator product.

[0049] Step A2: After preheating, the equipment is transported along the production line to the manual loading and unloading station W2 for electrical fixtures.

[0050] After preheating, the stator products are carried on pallets and move along the production line to the manual loading and unloading electrical fixture station W2. This station is equipped with a high-temperature protective cover W21, which is installed above the conveying path to physically isolate the high-temperature area from the operating area. The top of the high-temperature protective cover W21 has a top window W22 for the stator products to pass through during lifting.

[0051] Step A3: Pallet lifting and stator exposure.

[0052] When the pallet carrying the stator product moves to the area below the high-temperature protective cover W21, the lifting and positioning mechanism W23 at the bottom of the pallet activates, lifting the pallet upwards. The stator product rises along with the pallet, its top passing through and protruding through the top window W22 of the high-temperature protective cover W21. Most of the stator product body, the pallet, and the conveyor lines are isolated by the high-temperature protective cover W21. Operators only face the top of the stator and the exposed three-phase terminals, significantly reducing the ambient temperature.

[0053] Step A4: Manually install the power supply fixture.

[0054] At an ergonomic working height of 1100mm-1300mm, the operator aligns the power-taking fixture with the three-phase terminals of the stator and inserts it. The operator manually locks the locking buckle ZJ02 on the fixture and then tightens the three connecting screws ZJ04 on the fixture to the corresponding three-phase terminals of the stator, establishing a stable mechanical connection and electrical contact between the fixture and the stator's three-phase terminals. This power-taking fixture is used to supply current to the three-phase windings of the stator during the subsequent paint-drip process, utilizing the stator's own heating to heat the paint dripping process. After installation, the lifting and positioning mechanism W23 descends, and the tray carrying the stator product with the power-taking fixture installed returns to the conveyor line height.

[0055] Step A5: Enter the paint dripping station.

[0056] The stator product, equipped with a power-taking fixture, is conveyed along the production line to the varnish-dispensing station W3. At the varnish-dispensing station, the varnish-dispensing device applies insulating varnish to the stator windings, while simultaneously, current is supplied to the three-phase stator windings through the power-taking fixture, causing the stator itself to heat up and promote the wetting and initial curing of the varnish in the windings. After varnish-dispensing is completed, the stator product and the power-taking fixture mounted on it continue to be conveyed forward along the production line to the next stage.

[0057] II. Back-end automatic disassembly and power supply fixture stage.

[0058] Step B1: Enter the automatic disassembly and removal of electrical jig station W4.

[0059] After the stator product has completed the paint dripping process, it carries the power-taking fixture along the stator tray conveyor line 2 into the automatic power-taking fixture removal station W4. This station is located between the paint dripping station W3 and the curing station W5. At this time, the stator product and the power-taking fixture still have a high residual heat from the paint dripping process. The stator tray conveyor line 2 has conveyor support sections spaced at both ends, with a clearance space 21 reserved between adjacent conveyor support sections to provide a vertical channel for subsequent lifting and fixture descent.

[0060] Step B2: Pallet lifting and positioning.

[0061] When the pallet loaded with stator products moves above the stator pallet lifting module 5, the first lifting drive mechanism 52 of the stator pallet lifting module 5 actuates, its piston rod extends vertically upward, driving the lifting base plate 51 to move upward. The positioning pin 54, vertically positioned on the upper surface of the lifting base plate 51, rises along with the lifting base plate 51 and inserts into the positioning hole at the bottom of the stator pallet, achieving bidirectional mechanical limiting in both the X and Y directions. The pallet is lifted away from the conveying support and achieves precise positioning.

[0062] Step B3: Visual positioning and coordinate compensation.

[0063] The vision positioning component 10, mounted on the mounting plate 11 of the XY dual-axis drive module 9, starts working. Its CCD industrial camera, with the help of a light source, acquires real-time images of the holes of the screws to be removed on the power supply fixture, and calculates the actual position coordinates of the screw holes through an image recognition algorithm. The control system compares these actual coordinates with the reference coordinates, calculates the position deviation, and generates compensation commands, providing data support for the precise positioning of the subsequent automatic screw tightening module 3.

[0064] Step B4: Move the automatic screw tightening module 3 to the disassembly position.

[0065] Driven by the XY dual-axis drive module 9, the automatic screw-tightening module 3 moves to directly above the first screw to be removed on the power-operated fixture, according to the compensation coordinates provided by the vision positioning component 10. During this process, the first Z-axis drive mechanism 31 drives the bit assembly to descend to a standby height close to the screw head.

[0066] Step B5: Remove the first screw.

[0067] The first Z-axis drive mechanism 31 drives the bit assembly to continue descending, ensuring the bit accurately engages with the Phillips head or hexagonal socket of the screw. The electric screwdriver then rotates, loosening the screw from the threaded hole and removing it completely. During this process, a floating connector provides minor axial and radial floating cushioning, effectively compensating for machining and assembly errors and preventing the bit from slipping or damaging the screw head.

[0068] Step B6: Reset the bit and discard the screw.

[0069] After disassembly, the first Z-axis drive mechanism 31 can drive the bit assembly to rise slightly, raising the bit along with the screw held at the end to a safe height. Subsequently, the Y-axis cylinder actuates, driving the bit assembly to move backward and reset along the Y direction, releasing the screw to fall into the screw collection slot located directly below the bit. The screw collection slot collects the disassembled screws, preventing them from falling onto the tray or into the conveyor line.

[0070] Step B7: Remove the remaining screws one by one.

[0071] The automatic screw tightening module 3 repeats steps B4 to B6 to remove the remaining screws on the power supply fixture in sequence.

[0072] Step B8: Rotate the tray 90 degrees.

[0073] After all screws have been removed, the rotary cylinder is activated, driving the lifting base plate 51 to rotate horizontally by 90 degrees, allowing the stator product to complete a 90-degree attitude change on the lifting platform. This rotation aligns the locking ZJ02 side and clamping operation face of the power-taking fixture with the working direction of the automatic power-taking fixture module 4, providing the optimal operating position for subsequent clamping and unlocking actions (for example, the locking of the power-taking fixture rotates from the right side to the front side, and the three power terminals ZJ04 of the power-taking fixture rotate from the rear side to the left side).

[0074] Step B9: Automatically remove the electrical jig module 4 and move it to the clamping position.

[0075] Driven by the XY two-axis drive module 9, the automatic power disassembly and reassembly jig module 4 moves to directly above the power disassembly jig. The second Z-axis drive mechanism 41 drives the mounting base 42 to descend to the preset clamping height. During the descent, the gripper 43 is in the open state, and the movable limit cylinder adjusts the position of the latch actuating part 47 according to the size of the outer ring ZJ01 of the power disassembly jig (two sets of latch actuating mechanisms are set on the mounting base 42, each set of latch actuating mechanisms includes a latch actuating part 47 and a separately set latch opening cylinder 48. The two sets of latch actuating mechanisms are installed on the same movable frame. The movable limit cylinder drives the movable frame to translate so that, according to different power disassembly jigs, the latch actuating part of the corresponding latch actuating mechanism is above the latch inner gap ZJ03 of the power disassembly jig). It should be noted that the movable limit cylinder is not strictly necessary. For cases with only one set of locking mechanism, the movable limit cylinder is not required. For cases with two or more sets of locking mechanisms, even without the movable limit cylinder, the initial position of the locking mechanism's locking part can be designed above the inner gap of the corresponding power-receiving fixture. In this way, when the automatic power-receiving fixture module descends to its final position, the corresponding locking part extends into the inner gap ZJ03. The movable limit cylinder is mainly used to retract the locking mechanism inwards in the non-working state, making it more compact and space-saving. When working, the position of the locking part is adjusted before or during the descent of the automatic power-receiving fixture module, ensuring that the locking part extends precisely into the inner gap ZJ03 when descending to its final position.

[0076] Step B10: Automatically remove and lower the electrical jig module 4.

[0077] The automatic disassembly and retrieval module 4 descends, causing the locking lever 47 to insert into the inner gap ZJ03 of the locking lever. At the same time, the lower ends of multiple sets of spring-loaded abutment posts 46 on the mounting base 42 press against the top of the outer ring ZJ01 of the power disassembly and retrieval module, forming a floating pre-pressure positioning.

[0078] Step B11: Clamp 43 clamps the power-generating fixture.

[0079] The gripper cylinder actuates, driving the gripper 43 to close. The radial gripping surface of the inner contour gripping part of the gripper 43 clamps the outer peripheral wall of the outer ring ZJ01 of the power-taking fixture from the radial outside (e.g., left and right gripping), providing a horizontal locking force; at the same time, the axial support surface of the contour gripping part is located below the bottom end face of the outer ring of the power-taking fixture, so as to support it from the bottom and provide a vertical rigid support force. At this time, the product abutment part 44 is located above the stator product.

[0080] Step B12: The latch opening cylinder 48 releases the latch ZJ02.

[0081] The piston rod of the latch-opening cylinder 48 extends horizontally outward, driving the latch-moving part 47 to move radially outward (forward, directly in front or slightly angled forward). The latch-moving part 47 contacts the latch ZJ02 of the power-on fixture and pushes it outward, releasing the locked state of the latch ZJ02. Since the gripper 43 has firmly clamped the fixture at this time, the impact force generated when the latch ZJ02 pops open will not cause any positional displacement or shaking of the fixture.

[0082] Step B13: Separate the product from the fixture, and link the pressing and lifting actions together.

[0083] The piston rod of the product-fixture separation cylinder 45 extends vertically upward, driving the product abutment part 44 to move downward relative to the gripper 43. The product abutment part 44 presses downward against the upper surface of the stator product (such as the end face of the stator core), establishing a mechanical connection between the power-taking fixture and the stator. The second Z-axis drive mechanism 41 drives the mounting base 42 and the gripper 43 mounted on it to rise along the Z-axis. The gripper 43 carries the power-taking fixture, which it firmly holds, upward, while the product abutment part 44 presses downward against the stator product to keep it in place. Under the action of the separation couple that pulls the fixture upward and presses the stator downward, the power-taking fixture and the stator product separate smoothly in the axial direction. Since the product abutment part 44 presses against the stator body rather than the three-phase terminals, all mechanical forces during the separation process do not act on the vulnerable terminal parts, and the terminals are effectively protected. After separation, it continues to rise, and the product abutment part detaches from the stator product.

[0084] Step B14: Automatically remove and move the electrical fixture module 4.

[0085] After the power-taking fixture is completely separated from the stator product, the gripper 43 continues to hold the power-taking fixture. Driven by the XY two-axis drive module 9, the automatic power-taking fixture disassembly module 4 carries the power-taking fixture horizontally to the area above the power-taking fixture lifting platform 6, ready to release the power-taking fixture.

[0086] III. Power supply fixture recycling and return stage.

[0087] Step C1: The lifting platform is in a raised, ready position.

[0088] Simultaneously with or slightly before step B14, the second lifting drive cylinder 62 of the power take-up fixture lifting platform 6 is activated, lifting the lifting pallet 61 to its highest position. At this time, the upper surface of the lifting pallet 61 is higher than the conveying surface of the stator tray conveyor line 2, ensuring that the power take-up fixture will not interfere with the conveying support when released.

[0089] Step C2: Gripper 43 releases the power-generating fixture to the lifting platform.

[0090] After the automatic disassembly and reassembly jig module 4 is positioned directly above the lifting pallet 61, the gripper cylinder actuates to open the gripper 43, and at the same time, the axial support surface removes its support from the bottom of the jig. Under the action of gravity, the jig lands smoothly on the upper surface of the lifting pallet 61, and the lifting pallet 61 reliably receives the jig at its elevated position.

[0091] Step C3: Automatically disassemble and reset the electrical fixture module 4.

[0092] After the gripper 43 releases the power-taking jig, the automatic power jig removal module 4 is reset to the standby position with the cooperation of the XY two-axis drive module 9 and the second Z-axis drive mechanism 41, waiting for the next disassembly command.

[0093] Step C4: The power supply fixture lifting platform 6 descends to the lowered position, the transfer return line body 71 is in the high position and ready to be deployed, and the power supply fixture is transferred to the transfer return line lifting module 7.

[0094] After the power-taking fixture is released onto the lifting platform 61, the piston rod of the second lifting drive cylinder 62 retracts, driving the lifting platform 61 from its elevated position to its lowered position. In the lowered position, the upper surface of the lifting platform 61 is flush with or slightly lower than the bearing surface of the transfer return line lifting module 7, allowing the power-taking fixture to rest on the transfer return line lifting module 7. Simultaneously with or slightly before the lifting platform 61 descends, the third lifting drive mechanism 72 of the transfer return line lifting module 7 has driven the transfer return line body 71 to a position higher than the conveying surface of the return conveyor line W7, ensuring that its bearing surface maintains a flush or slightly higher bearing height relationship with the lowered position of the lifting platform 61.

[0095] Step C5: The transfer return line 71 descends and connects with the return conveyor line W7.

[0096] After the power-taking fixture is completely transferred to the intermediate return line 71, it is conveyed to the left a specified distance along the intermediate return line 71 (avoiding the lifting pallet 61 to facilitate its raising to the higher position). The third lifting drive mechanism 72 then activates, driving the intermediate return line 71 to descend from the higher position to the lower position. At the lower position, the horizontal conveying surface of the intermediate return line 71 is flush with or slightly higher than the conveying surface of the return conveyor line W7, forming a smooth connection. The horizontal conveying surface of the intermediate return line 71 starts operating, conveying the power-taking fixture horizontally onto the return conveyor line W7. After receiving the fixture, the return conveyor line W7 conveys it in the reverse direction below the stator tray conveyor line 2 (passing below the paint dripping station W3), returning it to the fixture table W8 next to the front-end manual power-taking fixture loading station W2. After the power-taking fixture has completely detached from the transfer return line 71, the third lifting drive mechanism 72 reverses its action, driving the transfer return line 71 to rise from its low position and reset to its high position, awaiting the next power-taking fixture. At this point, the complete disassembly and return cycle of a single power-taking fixture is finished.

[0097] Step C6: The stator tray descends and resets, then continues conveying.

[0098] Simultaneously with or slightly earlier than step C5 (e.g., after step C4 is completed), the piston rod of the first lifting drive mechanism 52 of the stator tray lifting module 5 retracts, and the tray descends and resets to the conveying support of the stator tray conveyor line 2. The lifting base plate 51 drives the positioning pin 54 to descend. The positioning pin 54 exits from the positioning hole at the bottom of the tray, and the tray of the stator product with the power-on fixture removed continues to move to the right along the stator tray conveyor line 2, sequentially entering the curing station W5 for high-temperature curing, the cooling station W6 for cooling, and subsequent processes such as inspection, marking, and unloading.

[0099] IV. Recycling of fixtures after they are returned to the front end.

[0100] Step D1: The power-taking fixture arrives at the fixture table W8 next to the front-end manual power-taking fixture station W2.

[0101] The return conveyor line W7 transports the power-taking fixture to the fixture table W8 next to the manual power-taking fixture station W2. The power-taking fixture is automatically stopped at the end of the return conveyor line W7, waiting for the operator to pick it up.

[0102] Step D2: The operator retrieves the return fixture.

[0103] The operator at the manual power-on fixture station W2 retrieves the naturally cooled power-on fixture from the end of the return conveyor line W7 and uses it for the installation of the next batch of preheated stator products arriving at the station.

[0104] Step D3, continue the loop.

[0105] The power-feeding fixture then undergoes manual installation in step A4, electrical heating and paint application in step A5, automatic disassembly in steps B1 to B14, and recycling and recirculation in steps C1 to C5, finally returning to step D1 for operator use. This process repeats, forming a complete closed-loop cycle: manual loading and unloading at the front end → electrical heating and paint application at the back end → automatic disassembly at the rear end → recycling to the lower layer → returning to the front end. This significantly reduces the online dwell time of the power-feeding fixture compared to traditional solutions, and substantially reduces the total number of fixtures required.

[0106] The drives mentioned above can be cylinders, motors, etc., and can be selected / replaced as needed in actual design, and are not limited to the above embodiments. Also, Figure 1 The power supply fixture shown is for illustrative purposes only and is not intended to limit the power supply fixtures applicable to the return circulation system of the stator coating production line.

[0107] In summary, this invention achieves stable, non-destructive, and efficient separation of the power extraction fixture under high temperature and tight-fitting conditions. Specifically: 1. The automatic electrical fixture removal station is positioned after the paint dispensing station and before the curing station. This allows the electrical fixture to be removed and returned to the production line after completing its function of heating and dispensing paint, and before entering the high-temperature curing oven. This layout overturns the traditional approach where the electrical fixture can only be removed after the stator product has completed the entire curing and cooling process, significantly reducing the fixture's dwell time on the production line. Under continuous production line operation, this means a substantial reduction in the total number of electrical fixtures required. Furthermore, since the electrical fixture no longer enters the high-temperature curing oven with the product, it avoids prolonged exposure to high-temperature thermal cycling, reducing the thermal aging rate of the fixture material, extending its service life, and further lowering tooling maintenance and replacement costs.

[0108] 2. The front-end manual loading and unloading station achieves human-machine isolation through high-temperature protective covers, allowing operators to safely and comfortably complete fixture installation and meet various differentiated non-standard assembly tasks; the rear-end automatic disassembly station is completely unmanned, with automatic disassembly equipment reliably performing the separation of power-taking fixtures under high-temperature conditions; the middle is achieved by unmanned delivery of power-taking fixtures through a return conveyor line, and the entire automatic connection process is smooth and bottleneck-free, ensuring continuous and stable production line operation.

[0109] 3. The automatic screw tightening module and automatic electrical fixture removal module replace manual disassembly operations. The ingenious structural design of the automatic disassembly equipment, employing a vertically integrated layout, vertically integrates multiple functional modules—lifting and positioning, screw removal, fixture clamping and separation, fixture lowering and receiving, and fixture horizontal transfer—around the same clearance space. This fully utilizes the three-dimensional space above and below the stator tray conveyor line, saving floor space and making it feasible to integrate the automatic disassembly process into the existing paint spraying production line. In particular, placing it after the paint spraying stage effectively overcomes the risk of the electrical fixture slipping and falling during the Z-axis upward separation process when it is tightly fitted with the stator terminals due to thermal expansion, ensuring the reliability of high-temperature disassembly operations. Simultaneously, it effectively prevents the stator three-phase terminals from becoming misaligned, deformed, or damaged during disassembly.

[0110] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An automatic disassembly device for a stator-heated power-generating fixture, characterized in that, Includes a frame and a stator tray conveyor line mounted on the frame, an automatic screw tightening module, an automatic power disassembly and reassembly fixture module, a stator tray lifting module, a power disassembly fixture lifting platform, and a transfer return line lifting module; The stator pallet conveyor line has conveyor support sections spaced at both ends, with clearance between adjacent conveyor support sections. An automatic screw-tightening module and an automatic electrical fixture removal module are located above the stator pallet conveyor line. A stator pallet lifting module is located below the stator pallet conveyor line and is positioned within the clearance space; it is used to lift the stator pallet upwards, detach it from the stator pallet conveyor line, and achieve positioning. An electrical fixture lifting platform is located below the stator pallet conveyor line and is positioned within the clearance space; it is used to receive the electrical fixture removed from the stator by the automatic electrical fixture removal module. A transfer return line lifting module is connected to the electrical fixture lifting platform. The automatic disassembly and reassembly electrical fixture module includes a second Z-axis drive mechanism, a mounting base driven by the second Z-axis drive mechanism to move up and down along the Z-axis, and grippers, gripper cylinders, latch actuating parts, latch opening cylinders, product contact parts, and product-fixture separation cylinders mounted on the mounting base. The output end of the gripper cylinder is connected to the gripper and is used to drive the gripper to open and close. A contoured gripping part is provided on the inner side of the gripper, which has a radial gripping surface and an axial support surface. The radial gripping surface is used to support the gripper when it is closed. The outer peripheral wall of the power-collecting fixture is clamped when the fixture is engaged, providing a horizontal locking force to prevent the fixture from moving horizontally. The axial support surface supports the bottom end face of the outer ring of the power-collecting fixture from the bottom, providing a rigid support force in the vertical direction. The latch opening cylinder drives the latch actuating part to move outward to open the latch of the power-collecting fixture. The product and fixture separation cylinder is mounted on the gripper to move with the gripper. The product and fixture separation cylinder drives the product abutment part to move downward relative to the gripper to press downward against the stator.

2. The automatic disassembly device for the stator energized heating and power-taking fixture according to claim 1, characterized in that, The stator tray lifting module includes a lifting base plate, a first lifting drive mechanism, a rotary cylinder, and a positioning pin. The lifting base plate is horizontally positioned directly below the clearance space. The first lifting drive mechanism drives the lifting base plate to rise and fall. The rotary cylinder drives the lifting base plate to rotate horizontally. The positioning pin is vertically positioned on the upper surface of the lifting base plate and is used to engage with the positioning holes at the bottom of the stator tray.

3. The automatic disassembly device for stator energized heating and power-taking fixture according to claim 1, characterized in that, The frame is also equipped with an XY two-axis drive module. The automatic screw tightening module and the automatic removal and unloading of electrical jig module are driven by the XY two-axis drive module to move on the XY two-dimensional plane.

4. The automatic disassembly device for stator energized heating and power-taking fixture according to claim 3, characterized in that, The automatic screw-tightening module includes a first Z-axis drive mechanism, a bit assembly, and a Y-axis cylinder that drives the bit assembly to move along the Y-axis. The first Z-axis drive mechanism drives the Y-axis cylinder and the bit assembly to move up and down along the Z-axis together. A screw recycling point is provided on the frame, and the bit assembly is moved horizontally by the Y-axis cylinder to drop the screw into the screw recycling point.

5. The automatic disassembly device for stator energized heating and power-taking fixture according to claim 1, characterized in that, The power supply fixture lifting platform includes a lifting platform and a second lifting drive mechanism; the lifting platform is horizontally positioned directly below the clearance space, and the second lifting drive mechanism is connected to the lifting platform. The lifting tray has a high position and a low position. When it is in the high position, the upper surface of the lifting tray supports the power supply fixture placed on it. When it is in the low position, the upper surface of the lifting tray is flush with or lower than the bearing surface of the transfer return line lifting module.

6. The automatic disassembly device for stator energized heating and power-taking fixture according to claim 5, characterized in that, The transfer return line lifting module includes a transfer return line body and a third lifting drive mechanism; the transfer return line body is located on the left or right side of the power take-up fixture lifting platform, and the transfer return line body has a horizontal conveying surface; the third lifting drive mechanism is connected to the transfer return line body and is used to drive the transfer return line body to switch between lifting and lowering between the conveying surface above the return conveyor line it is connected to and the conveying surface at or below the return conveyor line.

7. A method for automatically disassembling a stator-energized heating jig, characterized in that, The method is implemented using the automatic disassembly device for stator energization heating and power extraction jig as described in any one of claims 1 to 6; the method includes the following steps: Step S1: The stator pallet loaded with the stator is transported along the stator pallet conveyor line to the top of the stator pallet lifting module, where the stator pallet lifting module lifts the stator pallet upwards, removes it from the stator pallet conveyor line, and positions it. Step S2: Move the automatic screw tightening module above the stator tray and remove the screws on the power supply fixture used to tighten the three-phase stator terminals; Step S3: The automatic disassembly and removal module removes the power jig from the stator and places it on the power jig lifting platform. At this time, the power jig lifting platform is in the raised high position. Step S4: The power supply fixture lifting platform is lowered to the lowered position, and the power supply fixture is placed on the transfer return line lifting module.

8. A power supply fixture circulation system in a stator coating production line, characterized in that, It includes a preheating station, a manual loading and unloading station for electrical jigs, a paint dripping station, an automatic unloading and unloading station for electrical jigs, and a curing station arranged sequentially along the conveying direction of the stator tray conveyor line; The automatic disassembly and removal station is equipped with an automatic disassembly device for the stator energized heating fixture as described in any one of claims 1 to 6. The automatic disassembly device is located between the paint dripping station and the curing station and is used to automatically disassemble the fixture from the stator product after the paint dripping process is completed and before the curing process is started. A return conveyor line connects the automatic disassembly and reassembly station for electrical jigs to the manual assembly and reassembly station for electrical jigs. The starting end of the return conveyor line is connected to the transfer return line lifting module of the automatic disassembly equipment, and the ending end of the return conveyor line extends to the side of the manual assembly and reassembly station for electrical jigs. The return conveyor line is used to transport the disassembled electrical jigs from the automatic disassembly equipment back to the manual assembly and reassembly station for repeated use.

9. The power supply fixture circulation system in the stator coating production line according to claim 8, characterized in that, A high-temperature protective cover is also installed at the manual power-on fixture station. The high-temperature protective cover is placed above the conveyor path of the production line. The high-temperature protective cover has a top window to allow the top of the stator product to be exposed for the installation of the power-on fixture.

Images